However, at Neptune’s surface, the gravity is only about 1.1 times the gravity we experience on Earth. In other words, if ...

Sedna will make its closest approach to the Sun in 2076, giving us a rare opportunity to visit the planetoid before it drifts ...

Neptune's gravity is dragging Triton closer to the planet, meaning that millions of years from now, Triton will come close enough for gravitational forces to rip it apart.

Neptune is called an “ice giant” because it’s mostly made of a thick, slushy mix of water, methane, and ammonia, which ...

New images from the space-based observatory offer a novel view of the planet in infrared. By Jonathan O’Callaghan No spacecraft has visited Neptune since 1989, when the NASA probe Voyager 2 flew ...

Explore all 16 of Neptune's moons along with their names and dates of discovery. ... If it was just a bit bigger, its gravity would pull the moon's shape closer to a sphere, NASA said.

It orbits Neptune backward, possibly because it was once a dwarf planet like Pluto and Sedna that got caught up in Neptune’s gravity and pulled into what astronomers call a retrograde orbit.

A passing star, or a stellar flyby, with the potential to pull Neptune out of its orbit by just 0.1%, could mean catastrophe for the entire solar system. But don’t worry — it won’t happen in ...

Neptune’s gravity is slowly sapping energy from Triton, causing the moon to inch closer to Neptune. Scientists predict that Triton might one day wander too close and end up becoming ...

Escape velocity: To escape Neptune’s gravity, you need to travel 52,600 miles (84,700 km) per hour, compared to 25,000 miles (40,200 km) per hour necessary to escape Earth’s gravity.Other ...

Astronomers also hypothesize these new moons were captured by the gravity of Uranus and Neptune either during or shortly after they ... The brighter of the two Neptune moons is about 23 ...